Filter Frame

FIG. 1 is a perspective view of a filter frame;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a bottom view thereof;

FIG. 6 is a right view thereof; and,

FIG. 7 is a left view thereof.

The broken lines shown in the figures are for the purpose of illustrating portions of the filter frame and form no part of the claimed design.